In the latest MarTalks podcast episode, I had the pleasure of sitting down with Eli Finkelshteyn, the founder of Constructor, to talk about how *real* innovation in e-commerce isn’t just about flashy features—it’s about leveraging technology to drive actual business outcomes. Spoiler alert: Eli and his team are doing just that, and then some.

Here’s why Constructor’s technology is one of the most wildly successful and widely adopted composable solutions on the market:

Reinventing Search with Data Science

Eli’s journey into e-commerce started with a frustration we can all relate to: stinky search engines that don’t deliver what you’re looking to find. Legacy tools like Elasticsearch and Solr were fine for basic queries, but they couldn’t prioritize what really matters—conversions and revenue. So, Eli built Constructor to deliver just that by leveraging clickstream data and machine learning. Constructor optimizes search and discovery experiences to ensure shoppers find what they want *and* businesses see measurable results.

Real-World Wins

Sephora: What started as a small implementation for Sephora’s U.S. iOS app quickly snowballed into a global rollout across platforms, languages, and even email recommendations. Why? Because Constructor kept winning A/B tests by delivering higher conversions and revenue per visit. The proof was in the pudding, or more correctly, the Creamy Brightening Concealer….

Recommerce Marketplace: For a secondhand clothing platform, Constructor delivered a 5.5% lift in search conversion rates while also boosting average order value (AOV) and revenue per visit (RPV). That’s not just incremental improvement—that’s a game-changing way to support sustainable commerce!

AI That Actually Works

Let’s talk about Constructor’s AI Shopping Assistant. Unlike generic tools that spit out irrelevant results, this assistant handles complex queries like “What should I buy for camping with kids?” with ease. It doesn’t just answer questions; it integrates seamlessly into existing systems, giving even smaller players the ability to compete with giants like Amazon.

Composable Commerce Done Right

Eli is a big believer in composable architectures—but he’s also realistic. He sees composable solutions as tools that should empower businesses, not overwhelm them. Constructor’s API-first approach allows companies to replace legacy systems like Endeca or Solr in record time (we’re talking as little as nine days to go live for the win!) while delivering immediate revenue impact.

Balancing Tech with Creativity

While AI is great at automating the grunt work—like managing synonyms or correcting misspellings—Eli reminds us that human creativity is still king when it comes to merchandising strategies and brand storytelling. Think Walmart’s iconic pickup truck display; no algorithm could replicate that kind of magic.

Moving the Needle

At its core, Constructor isn’t just about technology—it’s about the ROI. From their unique proof schedule (showing ROI before clients commit) to their 98.5% retention rate over three years, Eli and his team have built a platform that delivers trust alongside innovation.

If you’re in e-commerce and haven’t explored how cutting-edge tech like Constructor can transform your search and discovery experience, now’s the time to start asking questions—and getting answers that actually move the needle for your business.

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